Lock



V. ZIMMERMANN.

LOCK.

APPLICATION FILED NOV. 18. I9l9.

1,355,725. Patented 0512,1920.

2 SHEETS-SHEET I.

I5 ET;

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Vicraz 21mm I UNITE-D) STATES.

PATENT OFFICE.

moron. zmmnnmnivn, or VIENNA; AUSTRIA.

LOCK.

Specification of Letters Patent.

Patented Oct. 12, 1920.

Application filedNovember 18. 1919. Serial No. 339,004.-

' to locks and has particular reference to that class of'locks such as are used on doors or lEh? like, and which employboth a latch and a The primary object of the invention is to vprovide-a lock in which the latch is mounted normally free to be manipulated for the door under ordiopening and closin also to provide a key nary conditions, an

controlled bolt that is normally maintained inactive, but which fnay be released by the key and actuated by a manipulating means to active position locking the door, and

which will b maintained in this position so long as the ey is removed from controlling relation thereto, but which may be released from active position by the key and manipulated to inactive position when unlocking the door.

While the functioning of the look just described is somewhat similar to heretofore known locks of this character it would be in order to state that the'invention in its preferred form contemplates providing a single means for actuating the latch andthe bolt. By this'arrangement and with the key in releasing relation relative to the bolt a single manipulating means turned in one relation such as-clo'ckwise, will actuate the latch to inactive position, and when released permit the latch to assume an active position under the influence of a spring, and when the manipulating means is turned anti-clockwise the same will actuate the bolt to active position, and when again turned in a clockwise direction it-will -actuate the bolt to in-. active position, aswell as the latch, whereupon when it is released'vthe latch will assume an active position as stated under the influence of a spring.

This is all accomplished as long as the key is in releasing relation relative to the .bolt and its associated parts. When the key is removed from its controlling position the bolt is maintained in active or inactive position as the case may be with the manipula ting means only actuating the latch.

I. confronting shoulders.

The accompanying drawings illustrate the invention and in which- Figure'l is a side elevation of a door lock l showing the relative position of the latch l' and bolt.

Fig. 3 is a sectional view on the line 3--3 of Fig.1. e

I Fig. 4 is a view similar to Fig. 1 showing the parts in different position.

Fig. 5 is also a side elevation of the parts in a third position.

Fig. 6 is a sectional view onthe line 66 of Fig. 4. a

Fig. .7 is a side view of' a modified bolt and latch arrangement.

Fig. 8 is a front view of a part of the face plate showing the bolt as proposed in 7, and I Fig. 9 is a side elevation of a part of the lock illustrating a modification of the latch and bolt actuatmg means.

Referring to the drawings in detail the latch 1 and the bolt 2 are slidably mounted in a suitable housing 3 which has a removable side piece land a front face 5 having openings therein through which the latch and bolt are adapted to extend (see for instance Figs. 1 and 2.) Under the influence of a coil spring 6 which is mounted on the post 7 its opposite end bearing against the shoulder on the latch, the latch is adapted to be maintained normally active as is customary in latches of this kind. The same is slidably mounted in the housing by means of'the post 8 and a shoulder on the opposite side of the rollback 9, thus the end of the latch is practically confined between two The post 8 also acts as a stop to limit the outward movement of the latch relative the' face plate tov which end the-end of the latch is provided with a shoulder as at 10, which. is adapted to engage the post 8 as clearly shown. The rollback 9 is provided with a bore 11 made to receive the shank of a manipulating device such as aknob or handle, and it is further provided with a vertical extension as at 12 .which is adapted to overly the latch and ion rection the shoulder will bear against the stud l3 and retract the latch in the housing the same bein returned to normal position under the in uence of the coil spring'14 which is anchored to the post 15 with its opposite end bearing against the rollback. With this construction it will be readily seen how the latch is actuated.

In so far as concerns the manipulation of .the bolt the following construction is to be considered. Pivoted as at 16 is a vertically presented lever 17, the opposite end of which is confined in a recess 18in the bolt 2. The inner end of the bolt is fixed to a rectangular frame 19 which together with the recess in the bolt confines the end of the lever 17 in the recess -mentioned. This frame 19 is slidably mounted between the posts 20 and 21 and adapted to confine a plurality of flat springless tumblers 22 each of which being irregularly slotted and collectively made to receive a post 23 whichis' fixed to the housing of the lock, and'extends through one series of slots in the tumblers. The tumblers are capableiof a limited sliding vertical movement in the frame 19 whereupon a key 24 may be inserted in an opening in the one side\ of the lock' housing and engage the tumblers with its end seated in an opening in the opposite side of the.

. housing. The key is provided with a multiplicity ofsta gered slots or grooves .coinciding with tile position which the tumblers must assume to release the bolt whereby the tumblers may b'eso positioned that a space as at 25 maybe arranged to per-. mit the post 23 to pass therethrough. So

1 long as the key is removedthe space 25 accommodate the passage of the post 23 (see for instance Fig. 4), whereupon by turning the mani ulating means for the roll back in an anti-c ockwise direction the extension 12 of the rollback will bear against the'sideof the lever 17 and move the same ina direc- "tion toward the face plate 5 and conseguently with the end of the lever confined 1n the recess 18 the same will slide the bolt outwardly from the face plate 5 or in other words to active position, "with the post23 passing through the opening 25 to the space in the tumblers to the right thereofl 'When the bolt has thus been moved to active position by removing the. key the post. will be maintained in the space to the right of the arrangement shown! in Figs. 7

space 25 whereupon the bolt will be lodged in action position. By again inserting the key the tumblers will be positioned whereby the post will be accommodated in the space 25 permitting the bolt to be manipulated to inactive position. Y

It is of course to be noticed that with the absence of a spring to retract the bolt 2 in the housing 3 some means for manipulating the lever 17 to effect this result is necessary. This can be conveniently accomplished by means of the shoulder 1 on the latch, 1 so that when the latch is retractedfby the manipulating means the shoulder 1 will bear against the side of the lever and impart a sliding movement to the bolt for receiving the same within the housing.

It will .be readily seen that with the ex ception of. the springs 6 and 14 the working parts of the lock particularly the. tumblers do not require any sensitive spring structure of the like to properly function which is a decided advantage over heretofore known devices of this general character. Then again the key is not to be turned at all, but merely inserted'in the openings 1 made to receive it, and it'therefore does not manipulate the bolt to active or inactive position, but merely releases the same so that the latch manipulating means may perform its function.

The modification of the bolt and tumbler and 8 includes a spring whereby the bolt 2 instead of being made solidlas in the other figures is made "up ofja pluralityof superimposed plates which are slidably mounted as in the case of the solid bolt in the housing 3 with .the'tumbler arrangement provided as an integral part of the bolt. In other words, in-

stead of fixing'the frame 19 to the bolt 2 with the-tumblers confined in the frame each of the plates producing the bolt are Slottedandi arranged to provide tumblers which are engaged by the key 24 in a manner as in the other form to position the sameso as topermit the posts 23*- which are fixed to the housing 3', to permit the bolt to slide to and from active and inactive position.. The bolt opening in the face plate 5 will of course be slightly longer than the bolt so as to accommodate the plates which go to make up the bolt when they are out of horizontal alinement. The bolt "will be slotted as at 18 as inthe other form to ac commodate the end of the lever '17.

In the modification shown in Fig. 9-oper ation'of the device is substantially identical with the other forms and the bolt and tumbler arrangement may be either of the forms as described, however the latch, roll- 'back' and their associated parts are slightly changed for instance, the latch in this form is slotted as at 26 with a pin 27 redelved therein, and'with the coil spring 28 vided with a shoulder as at 37 which bears. against the pin 38 whereby the rearwardly sliding movement of the lever 35 in the housing is arrested. A suitable coil spring 39 which is anchored as at 4:0 with its opposite end presented against the arm 34 is employed to maintain the arm in proper functioning position.

Having thus described my invention what I claimas new and desire to secure by Letters Patent is as follows g 1. In a look, a latch, means for operating the latch, a locking bolt, means for locking the bolt in position, means for releasing the bolt locking means, and means for operating the bolt from the latch operating means.

2. In a lock, a latch, means for operating the latch, a locking bolt, a plurality of key controlled tumblers for'locking the bolt in position, and means for operating the bolt from the' latch operating means when the bolt i'sjreleased by the tumblers.

3. In a look, a latch, means for operating the latch, a locking bolt, a plurality of sliding tumblers for locking the bolt in position, a key for operating the tumblers to release the bolt, and means for operating the bolt from the latch operating means.

4:. In a look, a latch and a bolt, said latch adapted to normally assume an active position, a rollback adapted to be moved in one direction to slide the latch to inactive. position, means associated with said rollback and said bolt adapted to be actuated when'the rollback is moved in an opposite direction to slide the bolt to active position, and means cooperating with the means associated with the rollback and the bolt, operable upon the sliding of the latch to inactive position to slide the bolt to inactive position.

5. In a lock, a latch and a bolt, said latch adapted to normally assume an active position, a rollbackadapted to be moved in one .d rection to slide the latch to inactive position, means associated with said rollback and said bolt adapted to be actuated when the rollback is moved in an opposite direction toslide the bolt to active position, and means cooperating with the means associated with the rollback and the bolt operable upon the sliding ofthe latch to inactiveposition to slide the bolt to inactive position, and means for maintaining the bolt 'in an active or an inactive position.

6. In a lock, a latch and a bolt, said latch adapted to normally assume an active position, a rollback adapted to be moved in one direction to slide the latch to inactive posit1on, means associated with said rollback and said jbolt adapted to be actuated when the rollback is moved in an opposite direction to slide the bolt to active position, and

1 means cooperating with the means associated with the rollback and the bolt,-operable upon the sliding of the latch to inactive position to slide the bolt to inactive position,

a series of tumblers associated with said bolt adapted to cooperate with a key, whereby the bolt may be released in active or inactive position, but adapted to maintain the bolt liinoperative when disengaged by the said 7. In a lock, a'latch and a bolt, said latch adapted to normally assume an active position, a rollback adapted to be moved in one direction to slide the latch to inactive position, means associated with said rollback and said bolt adapted to be actuated when the rollback is moved in an opposite direction, to slide the bolt to active position, and means cooperating with the means associated with the rollback and the bolt, operable upon the sliding of the latch to inactive position to slide the bolt to inactive position, said means associated with the rollback and the bolt comprising alever pivoted at one end with its opposite end carried by the bolt, said rollback adapted to have a wiping contact with said lever to manipulate the same, to slide the bolt to active position and means on the latch adapted to contact with the lever when the latch is slid to an in-' active position to slide the bolt to inactive position.

8. In a lock, a latch and a bolt, said latch adapted to normally assume an active position, a rollback adapted to be moved in one direction to slide the latch to inactive position, means associated with said rollback and said bolt adapted to be actuated with the rollback as moved in an opposite'direction to slide the bolt to active position,.and means cooperating with the means associated with the rollback and the bolt, operable upon the sliding of the latch to inactive position, to slide thev bolt to inactive position, said means associated with the rollback and the bolt comprising a lever pivoted at one end with its opposite end carried by the bo1t,.said rollback adapted to have a wiping contact with'said lever to manipulate the same, to slide the bolt to active position and means on the lever adapted to contact with the lever when the latch is slid ;to an inactive position to slide the bolt to inactive witha series of tumblers and a key adapted and from active and inactive position, saio,

. position; said bolthaving associated theretumblers adapted to maintain the bolt in any one of said two positions when it is disengaged by the key.

9. In a lock, a sliding latch and a sliding bolt, a rollback adapted to be moved in one direction to slide the latch to inactive position, a spring for returning the latch to active position when released by the rollback,

a pivoted lever engaging the bolt, adapted to contact with the rollback when the same is moved in a direction opposite to that to slide the latch, to slide the bolt to active position, a shoulder on the latch adapted to contact with said lever when the latch is slid by the rollback, to slide the bolt to in- 15 active position, and a tumbler arrangement associated with the bolt made to receive a key, said tumbler arrangement adapted to maintain the bolt inoperative, and said key ment to render the bolt operable.

10. In a lock as set forth in claim 9 and in which the tumbler arrangement comprises adapted to' position said tumbler arrange- 20 a series of irregularly slotted plates with the key notched to engage and position said 25 slots in releasing relation relative to the bolt.

VICTOR ZIMMERMANN. 

